单项选择题

The girl was heard ______ upstairs.

A． to sing
B． sing
C． singing
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单项选择题
They said they would let us know if they ______ any news about the car.
A． will hear
B． heard
C． hear
单项选择题
If I don't see you again, I hope it all ______ well for you.
A． go
B． went
C． goes
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